Automatic stop for talking machines



Nov. 6, 1923. 1,473,503

K. NALBANTIAN AUTOMATIC STOP FOR TALKING MACHINES Filed Oct. 1922 'IIIIIIIIIIIIIIIIIIIIIIIIII/I II Inna-w 1|- Mm-ml/VI/E/VTOR 2 fiarwliin Malbmiiaa A TTOH/VEYS Patented Nov. 6, 1923.

U i T ii S T A T KABAKIN NALBANTIAN, 6F NERV Y RK, N Y.

AUTOMATIC STOP FOB TALKING MACHINES.

Application filed October 7, 1922. Serial No. 593,089.

T all whom it may concern Be it lmown that I, :KARAKIN NALBAN- TIAN, a. citizen of Armenia, and a resident of the city of New York, borough of the Bronx, in the county of Bronx and State of New York, have invented a. new and Im proved Automatic Stop for Talking Machines, of which the following is a full, clear, and exact description.

This invention relates to an automatic stop for a talking machine and has for an object to provide an improved, simplified structure which will automatically'operate when the sound box has been moved to an inoperative position.

view.

Another object of the invention is to provide an automatic stop for talking machines wherein the mechanism is arranged out of stop being broken away.

Figure 2 is a view similar to Figure 1 but showing the sound box in an inoperative position and the stop applied.

Figure 3 is a. bottom plan view of the 1 structure shown in Figure 2.

Figure 1 is a fragmentary sectional view through Figure 1 on line 4 i.

Referring to the accompanying drawing by numerals, .1 indicates a talking machine of any desired kind and 2 the usual tone arm provided with a sound box 3 which may be of any usual or preferred type connected in the usual way with the tone arm 2. This connection includes a rotating tubular member 4: and a. plug5. The sound box 3 co-acts with the turntable 6 and the record 7 for oroducing the desired sound, said turntable being operated by any desired means. The turntable 7 is provided with a depending annular flange 8 which is a well known construction. The various parts just described are old and well known and, therefore, form no part of the present invention except in combination with the new features hereinafter fully described.

Fitted in the top of the talking machine 1 is a sleeve 9 which maybe of any desired material and acts as a bearing for the shaft 10, which shaft is rigidly secured at one end to the arm 11 and at the other end to the arm. 12. The arm 11 carries a rotatable friction wheel 13 at its outer end which wheel is preferably rubber and which is adapted to be pressed against the flange 8 when it is desired to stop the rotationotthe turntable 6. Adjacent the outer end of the arm 12, a spring 1 1 is connected therewith, said spring having the opposite end connected to a suit able post 15 which may be part, of the talking machine. The spring 14 is a retractile springand normally acts to swing the arm 12 in such a direction as to cause the arm 11 to move the friction wheel or shoe 13 away from the flange 8. The link 16 is pivotally connected at 17 to the arm 12 and extends through a. suitable support 16 to a position beneath the tone arm where it is formed with a hook 18 through which the lower end or" the lever 19 projects. This allows the lever 19 andtone arm to be readily removed without disturbing the link 16 while Providing a pro-per connection when the device is in use. a general direction upwardly through the tone arm 2 and is pivotally mounted at 20 on a bar 21 soldered or otherwise rigidly secured in the tone arm. The upper end of the lever 19 is pivotally connected at 22 to an actuating link 23 which actuating link is pivotally connected at 24: to the lug 5 through the action'of the pin 25 (*igure at). l/Vhen the plug 5 is screwed down tight, which is thenormal position, it will rotate with the tubular member land, consequently, will swing the pin 25 from the position shown in Figure 1 to that shown in Figure 2 when the sound box 3 is moved to an in operative position as indicated in Figure 2. This swinging movement of the sound box will result in longitudinal movement of the actuating link 23 which movement will swing the lever 19 and pull link 16 until the parts assume the position shown in Figure 2 with the brake wheel or shoe 13 press ing tightly against the flange 8. This action will take place whenever the sound box is moved over to the position shown in Figure 2 regardless of the point where the sound box may be over the table 6. The connec tions at 20, 22 and 18 are preferably comparatively loose so that the swing of the tone arm 2 will not be retarded and will not prevent the proper actuation of the brake mechanism at any time.

WVhat I claim is 1. An automatic stop for talking Ina-- chines, comprising a friction member adapt- The lever 19 extends in ed to engage the turntable of a talking machine, and means for swinging said friction member into engagement with said turntable, said means including a plurality of levers arranged in the tone arm of the machine, and means in the tone arm for connecting one of the levers to the sound box supporting tube.

2. An automatic stop for talking machines, comprising an arm arranged beneath the turntable of a talking machine, a friction member carried by said arm adapted to be pressed against the turntable by the arm, a shaft carrying said arm, a spring for holding said shaft in a given position normally, a link for moving said shaft to a different position against the action of said spring so that said arm will press said friction member against the turntable of the talking machine, a pivotally mounted lever for moving said link longitudinally a power link for actuating said lever, and a pin for pivotally connecting one end of said power link to the rotatable support of the sound box of the talking machine whereby when said support is rotated by moving the sound box to an inoperative position, said link and associated parts will be actuated for causing said arm to apply said friction member.

3. In an automatic stop for talking machines, a pin connected to the rotatable support of the sound box of a talking machine, a power link pivotally mounted on said pin, a swinging arm arranged beneath the turntable of the talking machine, a friction member carried by said arm, spring means for normally holding said arm so that the friction member will be disengaged from said turntable, and means for connecting said arm with said power link whereby when said power link is moved in a given direction said arm will cause said friction member to engage said turntable.

i. In an automatic stop for talking machines, a lever pivotally mounted in the tone arm of a talking machine, a power link pivotally connected with said lever at one end and extending longitudinally through said tone arm, means for pivotally connecting one endof said power link to the rotatable tubular support of the sound box of the talking machine, said pivotal connection being such that the power link is moved longitudinally in one direction when the sound box is moved to an operative position and moved longitudinally in the opposite direction when the sound box is moved to an inoperative position, a friction member, and means actuated by said lever for moving said friction member toward and from the turntable 0f the talking machine.

KARAKIN NALBANTIAN. 

